// Copyright 2021-present StarRocks, Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.starrocks.common.util.concurrent.lock;

public enum LockGrantType {

    /**
     * The locker did not previously own a lock on the node, and a new lock has been granted.
     */
    NEW,

    /**
     * The locker did not previously own a lock, and must wait for
     * a new lock because a conflicting lock is held by another locker.
     */
    WAIT,

    /**
     * The locker already owns the requested lock, just increment the reference count
     */
    EXISTING,
}